How to expand the capacity range of the PWM converters (Stack Type)

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How to expand the capacity range of the PWM converters (Stack Type)

A “transformer-less parallel system” and “transformer insulation type parallel system” can be used to expand the total converter capacity.

*2

OPC-VG7-SIR is required for each stack.

*3

OPC-VG7-SI is required for each stack.

Transformerless parallel system configuration table

2 or 3 converters of the same capacity can be connected in parallel to increase capacity or facilltate system redundancy. Typical combinations are shown in Table 2, however, other configurations are also possible.

Table 2 Transformerless parallel system combination example (400V series, MD specification)

*2

OPC-VG7-SIR is required for each stack.